1188352945 has 32 divisors (see below), whose sum is σ = 1579197312. Its totient is φ = 852913152.

The previous prime is 1188352903. The next prime is 1188352993. The reversal of 1188352945 is 5492538811.

It is not a de Polignac number, because 1188352945 - 2²³ = 1179964337 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1188352895 and 1188352904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633529 + ... + 635401.

It is an arithmetic number, because the mean of its divisors is an integer number (49349916).

Almost surely, 2^1188352945 is an apocalyptic number.

It is an amenable number.

1188352945 is a deficient number, since it is larger than the sum of its proper divisors (390844367).

1188352945 is a wasteful number, since it uses less digits than its factorization.

1188352945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161.

The product of its digits is 345600, while the sum is 46.

The square root of 1188352945 is about 34472.4954855317. The cubic root of 1188352945 is about 1059.2093739496.

The spelling of 1188352945 in words is "one billion, one hundred eighty-eight million, three hundred fifty-two thousand, nine hundred forty-five".